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> Synbranchiformes (Spiny eels) > Mastacembelidae (Spiny eels)
Etymology: Macrognathus: Greek, makros = great + Greek, gnathos = jaw (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ekologi

; sötvatten bottenlevande. Tropical

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Asia: Kyeintali Chaung in the Rakhine Yoma mountain range, Myanmar.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 15.8 cm SL hane/ej könsbestämd; (Ref. 83418)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 4 - 6; Mjukstrålar i ryggfenan (totalt) : 53 - 55; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 47 - 51; Ryggkotor: 73 - 76. Belongs to the Macrognathus aculeatus species group but can be distinguished from all other Asian mastacembelids by having only 4-6 spines on dorsal fin (vs. 11-40). Differs further from all members of the Macrognathus aculeatus species group by having only 6-8 rostral tooth plates (vs. 9 in Macrognathus meklongensis to 55 in Macrognathus tapirus) and the details of color pattern (Ref. 83418).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Britz, R., 2009. Species of the Macrognathus aculeatus group in Myanmar with remarks on M. caudiocellatus (Teleostei: Synbranchiformes: Mastacembelidae). Ichthyol. Explor. Freshwat. 20(4):295-308. (Ref. 83418)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 22 March 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer

Ecology
Ekologi

Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Recruitments
Abundances

Life cycle
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Egg(s)
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Larver
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Distribution
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Anatomy
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Otoliths

Physiology
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Visual pigment(s)
Fiskljud
Diseases / Parasites
Toxicities (LC50s)

Genetics
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References
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00282 (0.00130 - 0.00610), b=2.96 (2.78 - 3.14), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Macrognathus pavo Britz, 2010